Light absorption distribution for photoacoustic imaging of bladder by use of endoscopic light illumination

Zheng-yu Li; Mei-jin Zhang; Qing-lin Kong; Dong-qing Peng; Li-li ZHU; Hui Li

doi:10.1117/12.2573197

10 October 2020 Light absorption distribution for photoacoustic imaging of bladder by use of endoscopic light illumination

Zheng-yu Li, Mei-jin Zhang, Qing-lin Kong, Dong-qing Peng, Li-li ZHU, Hui Li

Author Affiliations +

Proceedings Volume 11553, Optics in Health Care and Biomedical Optics X; 115531M (2020) https://doi.org/10.1117/12.2573197
Event: SPIE/COS Photonics Asia, 2020, Online Only

Conference Poster

Abstract

In recent years, bladder cancer has been a serious health concern around the world. As a rapidly growing imaging technique, photoacoustic imaging (PAI) was now being explored as an alternative for bladder imaging due to its non-invasive and non-ionizing nature. It was essential to know absorbed light distribution in bladder tissue which would influence the imaging depth and range of PAI. In the paper, optical model of human bladder was established, in which diffused light source was delivered through the urethra into the bladder cavity for endoscopic illumination. And Monte Carlo simulation method was adopted to calculate the light absorption distribution (LAD) in the bladder tissue. The shape and wavelength of light source were investigated in the simulation. The relevant conclusions would be significant for optimizing the light illumination in a PAI system for bladder cancer detection.

Citation Download Citation

Zheng-yu Li, Mei-jin Zhang, Qing-lin Kong, Dong-qing Peng, Li-li ZHU, and Hui Li "Light absorption distribution for photoacoustic imaging of bladder by use of endoscopic light illumination", Proc. SPIE 11553, Optics in Health Care and Biomedical Optics X, 115531M (10 October 2020); https://doi.org/10.1117/12.2573197

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